Coins evolved from ancient shells to bronze iron coins in the Spring and Autumn Period and the Warring States Period, to heavy metals, and then to gold and silver ingots. In the Song Dynasty, there were paper money-twisted fragments ... but it disappeared in the early Qing Dynasty. In the early years of the Republic of China, silver coins replaced ingots, and there were gold certificates in the national period. Finally, the paper money was reissued in New China.

Money has existed for 4000 years. Tracing back to the source, the word money first appeared in Guoyu and was mentioned in the dialogue between Shan Mugong and Zhou. The ancients regarded "Bei" as money, so almost all words related to money were beside the word "Bei". It is not difficult to see that the ancients created words with certain significance and purpose. Take money as an example, whether in the long river of history or in real life, its great role is breathtaking and thought-provoking. It can turn good into ugliness and ugliness into magic. So some people describe money as a knife that kills people without seeing blood.

From Xu Shen's Shuo Wen Jie Zi, An Introduction to Shuo Wen Jie Zi, Ma Xulun's Shu Zheng on Six Books of Shuo Wen Jie Zi to Xu Zhongshu's Oracle Dictionary, these scholars have all talked about the origin of the word "Jin" and the origin of the word "Zhen", because the traditional writing of the word "Qian" is "Yi". "Money", that is, "money is also, and the ancients cultivated the fields".